The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' Vogue Keira Knightley Green Vintage Evening Dress in Movie Atonement Celebrity Dress TheCelebrityDresses The Story Behind Keira Knightley's Emerald Green Slip Dress From 'Atonement' British Vogue She walked into the room, and time held its breath. Keira Knightley's emerald silk in Atonement (2007) wasn't just a costumeit was cinematic seduction. Named the best movie dress of all Atonement: Keira Knightley's Green Dress Clothes on film Keira Knightley wearing a green dress created by costume designer Jacqueline Durran in the 2007 film 'Atonement' : r whatthefrockk